plural noun
Dis·co·ceph·a·li | \ˌdiskōˈsefəˌlī\

Definition of Discocephali 

: a small order of spiny-finned fishes comprising the remoras and having the dorsal fin modified into a flat sucking disk on top of the head used for adhering to the bodies of other fishes (as sharks and swordfishes)

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History and Etymology for Discocephali

New Latin, from disc- + -cephali

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